Integrated equipment for in-situ injection and stirring

Abstract

The invention provides in-situ injection and stirring integrated equipment. The in-situ injection and stirring integrated equipment comprises a fixing frame supported on the ground, a clamping assembly slidably connected to the fixing frame and a transmission assembly used for driving the clamping assembly to move along an injection well. The clamping assembly is provided with two clamping spaces arranged in a spaced mode, and the clamping spaces are used for containing the agent injection pipe or the stirring shaft. A driving assembly for driving the injection pipe or the stirring shaft to rotate is further arranged on one side of the clamping assembly, a locking assembly is arranged on the side, away from the driving assembly, of the clamping assembly, a connecting base is arranged on the transmission assembly, and when the clamping assembly corresponds to the connecting base, the locking assembly locks the clamping assembly and the connecting base; the transmission assembly drives the driving assembly, the clamping assembly and the connecting base to reciprocate in the axial direction of the injection well. According to the device, medicament injection and stirring are implemented separately, and the situation that due to the simultaneous action of injection and stirring, the medicament penetration depth is insufficient, and the soil remediation effect is reduced is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of in-situ soil remediation, and particularly relates to an integrated device for in-situ injection and stirring. Background Art

[0002] The principle of in-situ injection remediation of soil is to inject oxidation agents or reduction agents underground by designing reasonable injection points, injection depths, and agent injection amounts for in-situ treatment of soil and groundwater. The specific process is to insert a grouting pipe with a special nozzle into the predetermined depth of the soil layer through drilling, and then spray the prepared agent from the nozzle. The high-pressure liquid flow sprays out and infiltrates into the soil body to achieve full mixing of the agent and the soil. Due to the high injection pressure, the agent solvent further diffuses in the aquifer, which is suitable for treating various soil strata, especially silty or clay layers with wet and sticky soil, strong plasticity, and low diffusion coefficient.

[0003] In the prior art, there is a process of simultaneously performing in-situ soil injection and stirring, but there are certain technical defects while improving the repair efficiency. First, the process control is difficult. Since the channel for injecting the agent is arranged inside the stirring shaft, if the stirring speed is too fast or the injection pressure is insufficient, it is easy to cause insufficient distribution of the agent in the soil, forming local enrichment or blank areas, reducing the repair effect. Second, for complex geological strata such as sand interlayers or clay layers, the stirring head may not be able to fully disturb the deep soil, resulting in insufficient penetration depth of the agent, and multiple repeated operations are required.

[0004] Moreover, the simultaneous action of injecting the agent and stirring requires high equipment performance. When the verticality deviation of the stirring head exceeds 1.5%, it is easy to cause pile body deviation or the agent diffusion path to deviate from the designed range, affecting the continuity of the repair range. In addition, in cohesive soil layers with poor permeability, some of the injected agent will flow back to the surface along the stirring gap, and an additional interception and recovery device needs to be set up. To make up for the loss of the agent, the actual agent dosage needs to exceed the designed value, significantly increasing the project cost. Summary of the Invention

[0005] In view of this, the present invention aims to propose an integrated device for in-situ injection and stirring to alternately perform the in-situ injection and stirring processes in the injection well, avoid the above defects, and improve the soil remediation effect.

[0006] To achieve the above object, the technical solution of the present invention is realized as follows: An integrated device for in-situ injection and stirring includes a fixed frame supported on the ground, a clamping assembly slidably connected to the fixed frame, and a transmission assembly for driving the clamping assembly to move along the injection well; There are two spaced clamping spaces provided on the clamping assembly, and the clamping spaces are used to accommodate the agent injection pipe or the stirring shaft; On one side of the clamping assembly, there is also a driving assembly for driving the injection pipe or the stirring shaft to rotate. On the side away from the driving assembly, a locking assembly is provided on the clamping assembly, and a connecting seat is provided on the transmission assembly. When the clamping assembly corresponds to the connecting seat, the locking assembly locks the clamping assembly and the connecting seat, and the transmission assembly drives the driving assembly, the clamping assembly, and the connecting seat to reciprocate axially along the injection well.

[0007] Further, the fixing frame includes legs and a fixing plate provided on the legs; The clamping assembly includes a sliding unit sliding along the length direction of the fixing plate, and first driving parts provided at both ends of the sliding unit. An abutting plate is provided on the power output shaft of the first driving part, and the sliding unit is arranged between the two abutting plates; The two first driving parts are alternately started to drive the sliding unit to reciprocate along the fixing plate.

[0008] Further, the sliding unit includes a base connected to the fixing plate, a clamping plate slidably connected to the base, and two clamping spaces arranged at intervals on the clamping plate.

[0009] Further, an inverted T-shaped guide bar is provided below the clamping plate, a guide rail protruding upward is provided on the base, and a receiving groove is provided on the guide rail. The lower end of the guide bar is adapted to the receiving groove; Through grooves are respectively provided at both ends of the clamping plate, and the extending direction of the guide bar is parallel to the extending direction of the through grooves.

[0010] Further, the driving assembly includes a mounting plate connected to one end of the clamping plate, a motor provided on the mounting plate, and locking assemblies provided on both sides of the power output shaft of the motor. The locking assemblies are used to clamp the motor and the injection pipe or the stirring shaft.

[0011] Further, a second driving part is also provided on the mounting plate. A movable plate is slidably connected to the mounting plate. The motor and the locking assemblies are both arranged on the movable plate, and the movable end of the second driving part is fixedly connected to the movable plate.

[0012] Further, the locking assembly includes a fixed block connected to the sliding seat, a locking block slidably connected to the fixed block, and a pressing block perpendicular to the locking block; A notch for receiving the locking block is provided on the connecting seat. When the pressing block is pressed down, the locking block is inserted into the notch, and the locking block restricts the displacement of the sliding seat and the connecting seat in the depth direction of the injection well; A third driving part for driving the pressing block to move downward is also connected to the sliding seat.

[0013] Further, the fixing block is a box body structure with an open end, a sealing plate is provided at the open end of the fixing block, an elastic member is connected between the sealing plate and the bottom wall of the fixing block, and the locking block is fixedly connected to the sealing plate.

[0014] Further, the locking block includes a sliding body and a plug-in block connected to the sliding body. A right-angled triangular groove is provided on the sliding body, and the pressing block gradually moves downward along the hypotenuse of the groove so that the plug-in block is inserted into the notch.

[0015] Further, the transmission assembly includes a support plate connected below the fixing plate, a holding frame connected between the two support plates, a rotating shaft pivotally connected to the upper end of the holding frame, a fourth driving part connected to one side of the rotating shaft, a driven shaft pivotally connected to the lower end of the holding frame, and a chain provided on the rotating shaft and the driven shaft. The connecting seat is fixed on the chain.

[0016] Compared with the prior art, the present invention has the following advantages: The in-situ injection and stirring integrated device of the present invention is provided with a clamping assembly for simultaneously providing a clamping space for the injection pipe and the stirring shaft. Through the position adjustment of the clamping assembly, the injection pipe and the stirring shaft are alternately arranged in the central position of the injection well in a sliding manner to form a working position. The driving assembly drives the injection pipe or the stirring shaft located at the working position to rotate, and drives the driving assembly, the clamping assembly and the connecting seat to move along the injection well through the transmission assembly, so as to realize the separate implementation of injecting the medicament and stirring, avoid the insufficient penetration depth of the medicament caused by the simultaneous action of injection and stirring, and reduce the soil remediation effect.

[0017] At the same time, the setting of the present invention can adapt to complex formation conditions. For low and medium permeability formations, the separate implementation of the injection technology can enhance the permeability of the medicament, and then through the stirring process, the local soil structure can be directly improved. The alternating implementation of the two can cope with the waste homogeneous formation with large permeability differences. And the alternating process can shorten the reaction cycle of the medicament, avoid excessive use of the medicament or repeated construction at the same time, and reduce the material and energy consumption costs. The stirring process of this embodiment is to adjust the soil structure after injecting the medicament, reduce soil disturbance, and reduce the risks of pollutant migration and medicament residue. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings: Figure 1Schematic structural diagram of the injection pipe during operation of the integrated device for in-situ injection and stirring according to an embodiment of the present invention; Figure 2 Schematic structural diagram of the stirring shaft during operation of the integrated device for in-situ injection and stirring according to an embodiment of the present invention; Figure 3 Connection schematic diagram of the clamping assembly according to an embodiment of the present invention; Figure 4 Side view schematic diagram of the base, clamping plate, guide bar, and guide rail according to an embodiment of the present invention; Figure 5 Working schematic diagram of the moving position of the clamping plate and the base according to an embodiment of the present invention; Figure 6 Schematic diagram of the clamping assembly according to an embodiment of the present invention; Figure 7 Three-dimensional schematic diagram of the locking assembly according to an embodiment of the present invention; Figure 8 Three-dimensional schematic diagram of the locking assembly without the fixing block according to an embodiment of the present invention; Figure 9 Connection structural schematic diagram of the sealing plate, pressing block, and locking block according to an embodiment of the present invention; Figure 10 Installation schematic diagram of the locking assembly and the third driving part according to an embodiment of the present invention; Figure 11 Schematic structural diagram of the transmission assembly according to an embodiment of the present invention.

[0019] Explanation of reference numerals: 1, fixed frame; 2, clamping assembly; 3, transmission assembly; 4, clamping space; 5, injection pipe; 6, stirring shaft; 7, driving assembly; 8, locking assembly; 9, connection seat; 10, injection well; 101, support leg; 102, fixing plate; 201, sliding unit; 202, first driving part; 203, abutting plate; 301, support plate; 302, holding frame; 303, rotating shaft; 304, fourth driving part; 305, driven shaft; 306, chain; 701, mounting plate; 702, motor; 703, locking assembly; 704, second driving part; 705, movable plate; 801, fixing block; 802, locking block; 803, pressing block; 804, third driving part; 805, sealing plate; 806, elastic member; 2011, base; 2012, clamping plate; 2013, guide bar; 2014, guide rail; 2015, receiving groove; 2016, through groove; 8021. Sliding body; 8022. Plug-in block; 8023. Groove. Detailed implementation manner

[0020] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0021] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "back", etc. is based on the orientation or positional relationship shown in the drawings. It is only for convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection", "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in combination with the specific circumstances.

[0023] The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0024] This embodiment relates to an integrated device for in-situ injection and stirring. Overall, as Figures 1 to 3 shown, the integrated device includes a fixed frame 1 supported on the ground, a clamping assembly 2 slidably connected to the fixed frame 1, and a transmission assembly 3 for driving the clamping assembly 2 to move axially along the injection well 10. The clamping assembly 2 is provided with two clamping spaces 4 arranged at intervals, and the clamping spaces 4 are used to accommodate the chemical injection pipe 5 or the stirring shaft 6.

[0025] On one side of the clamping assembly 2, there is also a driving assembly 7 for driving the injection pipe 5 or the stirring shaft 6 to rotate. On the side far from the driving assembly 7, the clamping assembly 2 is provided with a locking assembly 8, and the transmission assembly 3 is provided with a connecting seat 9. When the clamping assembly 2 corresponds to the connecting seat 9, the locking assembly 8 locks the clamping assembly 2 and the connecting seat 9, and the transmission assembly 3 drives the driving assembly 7, the clamping assembly 2, and the connecting seat 9 to move axially back and forth along the injection well 10.

[0026] The in-situ injection and stirring integrated equipment of this embodiment provides a clamping space 4 for the injection pipe 5 and the stirring shaft 6 simultaneously by setting the clamping assembly 2. Through the position adjustment of the clamping assembly 2, the injection pipe 5 and the stirring shaft 6 are slidably arranged alternately at the central position of the injection well 10 to form a working position. The driving assembly 7 drives the injection pipe 5 or the stirring shaft 6 located at the working position to rotate, and drives the driving assembly 7, the clamping assembly 2 and the connecting seat 9 to move along the injection well 10 together through the transmission assembly 3, so as to realize the separate implementation of injecting the medicament and stirring, avoid the insufficient penetration depth of the medicament caused by the simultaneous action of injection and stirring, and reduce the soil remediation effect.

[0027] Meanwhile, the setting of the present invention can adapt to complex formation conditions. For low- and medium-permeability formations, the separate implementation of the injection technology can enhance the permeability of the medicament, and then the local soil structure can be directly improved through the stirring process. The alternating implementation of the two can cope with the waste homogeneous formation with large permeability differences. Moreover, the alternating process can shorten the reaction cycle of the medicament, avoid excessive use of the medicament or repeated construction at the same time, and reduce the material and energy consumption costs. The stirring process of this embodiment lies in adjusting the soil structure after injecting the medicament, reducing soil disturbance, and reducing the risks of pollutant migration and medicament residue.

[0028] Based on the above overall introduction, an exemplary structure of an in-situ injection and stirring integrated equipment of this embodiment is as Figures 1 to 3 shown. The fixing frame 1 of the equipment is supported on the ground in a rectangular or circular shape.

[0029] As a preferred implementation manner, as Figures 1 to 4 shown, the fixing frame 1 includes legs 101 and a fixing plate 102 provided on the legs 101. The clamping assembly 2 includes a sliding unit 201 that slides along the length direction of the fixing plate 102, first driving parts 202 provided at both ends of the sliding unit 201, and abutting plates 203 provided on the power output shafts of the first driving parts 202. The sliding unit 201 is arranged between the two abutting plates 203, and the two first driving parts 202 are started alternately to drive the sliding unit 201 to reciprocate along the fixing plate 102.

[0030] Just as Figure 3 shown, the first driving part 202 adopts a telescopic oil cylinder, and the two telescopic oil cylinders are respectively arranged on both sides of the sliding unit 201 to drive and limit the position of the sliding unit 201.

[0031] As Figure 3As shown in the figure, the sliding unit 201 includes a base 2011 connected to the fixed plate 102, a clamping plate 2012 slidably connected to the base 2011, and two clamping spaces 4 are arranged at intervals on the clamping plate 2012. The base 2011 is provided on the fixed plate 102, the clamping plate 2012 is arranged on the base 2011, and the injection pipe 5 and the stirring shaft 6 are respectively arranged in the clamping space 4, which is convenient for the alternating use of the well injection process and the stirring process.

[0032] As Figures 1 to 5 shown in the figure, a T-shaped guide bar 2013 is provided below the clamping plate 2012, a guide rail 2014 protruding upward is provided on the base 2011, a receiving groove 2015 is provided on the guide rail 2014, the lower end of the guide bar 2013 is adapted to the receiving groove 2015, through grooves 2016 are respectively provided at both ends of the clamping plate 2012, and the extending direction of the guide bar 2013 is parallel to the extending direction of the through groove 2016. Based Figure 1 on this direction, the base 2011 is arranged along the length direction of the fixed plate 102. When the through groove 2016 of the clamping plate 2012 is located on the guide rail 2014, the clamping plate 2012 can reciprocate along the direction perpendicular to the length direction of the fixed plate 102, that is, move along the depth direction of the injection well 10.

[0033] Preferably, as Figure 6 shown in the figure, the driving assembly 7 includes a mounting plate 701 connected to one end of the clamping plate 2012, a motor 702 arranged on the mounting plate 701, and locking assemblies 703 arranged on both sides of the power output shaft of the motor 702. The locking assemblies 703 are used to clamp the motor 702 with the injection pipe 5 or the stirring shaft 6. In this embodiment, the locking assemblies 703 adopt two telescopic oil cylinders to drive two semi-circular clamping plates respectively, and the injection pipe 5 or the stirring shaft 6 is connected to the power output shaft of the motor 702. In order to avoid idling caused by insufficient clamping force of the clamping plate during rotation, teeth are provided on the outer side of the injection pipe 5 or the stirring shaft 6, and corresponding teeth are also provided on the inner diameter of the clamping plate.

[0034] In addition, as Figures 1 to 2 shown in the figure, a second driving part 704 is further provided on the mounting plate 701. A movable plate 705 is slidably connected to the mounting plate 701. The motor 702 and the locking assemblies 703 are both arranged on the movable plate 705. The movable end of the second driving part 704 is fixedly connected to the movable plate 705. The second driving part 704 adopts a linear module, the power output end of the module is connected to the movable plate 705, and the movable plate 705 slides along the length direction of the fixed plate 102 to adjust the position of the motor 702, which is convenient for the motor 702 to be correspondingly connected to the injection pipe 5 or the stirring shaft 6. In order to further ensure the connection effect, stroke switches can be provided on the fixed plate 102 and the movable plate 705 to monitor the position in real time and make corresponding adjustments.

[0035] In addition, as Figures 7 to 10As shown in the figure, the locking assembly 8 includes a fixed block 801 connected to the sliding seat, a locking block 802 slidably connected to the fixed block 801, and a pressing block 803 perpendicularly arranged to the locking block 802. The connecting seat 9 is provided with a notch for accommodating the locking block 802. When the pressing block 803 is pressed down, the locking block 802 is inserted into the notch, and the locking block 802 restricts the displacement of the sliding seat and the connecting seat 9 along the depth direction of the injection well 10. A third driving part 804 for driving the pressing block 803 to move downward is also connected to the sliding seat. The third driving part 804 adopts a telescopic oil cylinder. By driving the pressing block 803 to move downward through the third driving part 804, the locking block 802 is driven to be inserted into the notch, realizing the function of automatic locking, which is convenient for realizing the axial movement of the driving assembly 7, the clamping assembly 2, and the connecting seat 9 into the injection well 10 together. The injection pipe 5 carries the injection solvent and the nozzle rotates and sprays in the well. Through the power of high-pressure spraying, the combination depth of the solvent and the soil is increased, improving the repair range. Moreover, it can be adaptively adjusted by adjusting the rotation speed of the motor 702 and the spraying capacity of the solvent, avoiding the defects of the prior art and improving the soil repair effect.

[0036] After injecting the medicine, by loosening the clamping assembly and moving the clamping plate 2012, the stirring shaft 6 is adjusted to the corresponding position of the motor 702, and then through the locking of the clamping assembly, the transmission assembly 3 drives the stirring shaft 6 to rotate and stir while moving along the depth direction of the injection well 10, so as to realize the turning of the soil in the well. Repeating the above movement again can realize the effect of combining the injection of the medicine and the stirring process, improving the soil repair ability.

[0037] Preferably, as Figures 7 to 10 shown, the fixed block 801 is a box body structure with an open end. A sealing plate 805 is provided at the open end of the fixed block 801. An elastic member 806 is connected between the sealing plate 805 and the bottom wall of the fixed block 801. The locking block 802 is fixedly connected to the sealing plate 805.

[0038] Furthermore, still as Figures 7 to 10 shown, the locking block 802 includes a sliding body 8021 and a plug-in block 8022 connected to the sliding body 8021. A right-angled triangular groove 8023 is provided on the sliding body 8021. The pressing block 803 gradually moves downward along the hypotenuse of the groove 8023, so that the plug-in block 8022 is inserted into the notch.

[0039] In addition, as Figure 11As shown in the figure, the transmission assembly 3 includes a support plate 301 connected below the fixed plate 102, a holder 302 connected between the two support plates 301, a rotating shaft 303 pivotally connected to the upper end of the holder 302, a fourth driving part 304 connected to one side of the rotating shaft 303, a driven shaft 305 pivotally connected to the lower end of the holder 302, and a chain 306 provided on the rotating shaft 303 and the driven shaft 305. The connecting seat 9 is fixed on the chain 306. The fourth driving part 304 uses a rotary oil cylinder to increase the power when the injection pipe 5 and the stirring shaft 6 move downward, and alleviate the problem that the stirring shaft 6 cannot be stirred due to large resistance during the stirring process.

[0040] In addition, the stirring blades of this embodiment adopt a stepped blade design, with multiple layers of stirring blades at different angles. The shallow blades are responsible for breaking the hard soil layer, and the deep blades enhance the shearing force to avoid the collapse of the sand layer or the wrapping of clay. The variable-diameter stirring head adjusts the blade deployment diameter through a hydraulic or mechanical structure to adapt to the resistance of different strata. For example, the diameter is expanded in the sand layer to increase the disturbance range, and the diameter is shrunk in the clay layer to enhance the penetration ability. It can significantly improve the stirring effect in complex strata, ensure the effective penetration of the agent and reach the designed reinforcement depth. During actual construction, it is necessary to flexibly adjust the plan in combination with geological exploration data, and verify the feasibility of the parameters through a test section when necessary.

[0041] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An integrated device for in-situ injection and stirring, characterized in that: It includes a fixing frame (1) supported on the ground, a clamping assembly (2) slidably connected to the fixing frame (1), and a transmission assembly (3) for driving the clamping assembly (2) to move along the injection well; There are two clamping spaces (4) arranged at intervals on the clamping assembly (2), and the clamping spaces (4) are used to accommodate the chemical injection pipe (5) or the stirring shaft (6); On one side of the clamping assembly (2), there is also a driving assembly (7) for driving the injection pipe (5) or the stirring shaft (6) to rotate. On the side away from the driving assembly (7), there is a locking assembly (8) on the clamping assembly (2), and a connecting seat (9) is arranged on the transmission assembly (3). When the clamping assembly (2) corresponds to the connecting seat (9), the locking assembly (8) locks the clamping assembly (2) and the connecting seat (9), and the transmission assembly (3) drives the driving assembly (7), the clamping assembly (2) and the connecting seat (9) to reciprocate axially along the injection well.

2. The integrated device for in-situ injection and stirring according to claim 1, characterized in that: The fixing frame (1) includes a leg (101) and a fixing plate (102) arranged on the leg (101); The clamping assembly (2) includes a sliding unit (201) sliding along the length direction of the fixing plate (102), first driving parts (202) arranged at both ends of the sliding unit (201), and an abutting plate (203) arranged on the power output shaft of the first driving part (202), and the sliding unit (201) is arranged between the two abutting plates (203); The two first driving parts (202) are alternately started to drive the sliding unit (201) to reciprocate along the fixing plate (102).

3. The integrated device for in-situ injection and stirring according to claim 2, characterized in that: The sliding unit (201) includes a base (2011) connected to the fixing plate (102), a clamping plate (2012) slidably connected to the base (2011), and the two clamping spaces (4) are arranged at intervals on the clamping plate (2012).

4. The integrated device for in-situ injection and stirring according to claim 3, characterized in that: A reverse T-shaped guide bar (2013) is arranged below the clamping plate (2012), a guide rail (2014) protruding upward is arranged on the base (2011), a receiving groove (2015) is arranged on the guide rail (2014), and the lower end of the guide bar (2013) is adapted to the receiving groove (2015); Through grooves (2016) are respectively arranged at both ends of the clamping plate (2012), and the extending direction of the guide bar (2013) is parallel to the extending direction of the through grooves (2016).

5. The integrated device for in-situ injection and stirring according to claim 4, characterized in that: The driving assembly (7) includes a mounting plate (701) connected to one end of the clamping plate (2012), a motor (702) provided on the mounting plate (701), and locking assemblies (703) provided on both sides of the power output shaft of the motor (702). The locking assemblies (703) are used to clamp the motor (702) to the injection pipe (5) or the stirring shaft (6).

6. The integrated device for in-situ injection and stirring according to claim 5, wherein: A second driving part (704) is further provided on the mounting plate (701). An activity plate (705) is slidably connected to the mounting plate (701). The motor (702) and the locking assemblies (703) are both provided on the activity plate (705). The active end of the second driving part (704) is fixedly connected to the activity plate (705).

7. The integrated device for in-situ injection and stirring according to claim 6, wherein: The locking assembly (8) includes a fixed block (801) connected to the sliding seat, a locking block (802) slidably connected to the fixed block (801), and a pressing block (803) perpendicularly arranged to the locking block (802); A notch for accommodating the locking block (802) is provided on the connecting seat (9). When the pressing block (803) is pressed down, the locking block (802) is inserted into the notch, and the locking block (802) restricts the displacement of the sliding seat and the connecting seat (9) in the depth direction of the injection well; A third driving part (804) for driving the pressing block (803) to move downward is further connected to the sliding seat.

8. The integrated device for in-situ injection and stirring according to claim [7], wherein: The fixed block (801) is a box body structure with an open end. A sealing plate (805) is provided at the open end of the fixed block (801). An elastic member (806) is connected between the sealing plate (805) and the bottom wall of the fixed block (801). The locking block (802) is fixedly connected to the sealing plate (805).

9. The integrated device for in-situ injection and stirring according to claim 8, wherein: The locking block (802) includes a sliding body (8021) and a plug-in block (8022) connected to the sliding body (8021). A right triangle groove (8023) is provided on the sliding body (8021). The pressing block (803) gradually moves down along the hypotenuse of the groove (8023) so that the plug-in block (8022) is inserted into the notch.

10. The integrated device for in-situ injection and stirring according to claim 1, wherein: The transmission assembly (3) includes a support plate (301) connected below the fixed plate (102), a holder (302) connected between the two support plates (301), a rotating shaft (303) pivotally connected to the upper end of the holder (302), a fourth driving part (304) connected to one side of the rotating shaft (303), a driven shaft (305) pivotally connected to the lower end of the holder (302), and a chain (306) provided on the rotating shaft (303) and the driven shaft (305), and the connecting seat (9) is fixed on the chain (306).

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